||This was part of a large collection of UK and Canadian counterstamps bought years ago by the seller. The source was an elderly German man living in Alberta. Included in the collection were about a dozen Troubles stamped coins. All, except this and L-43g , were sold to Irish collectors. These two remained in his inventory until just recently when I spotted them on his website. The SF stamp is very large compared to most other issues I've seen. It's the only example in my collection though I have other variants of Sinn Fein stamps. Purchased from Stephen Oatway (Britannia Numismatics) Halifax, NS, Canada. (Sp. 6, 2022) ($24).